tsconfig.json

{
  "compilerOptions": {
    "outDir": "build/dist",
    "module": "ESNext",
    "target": "ES6",
    "lib": ["ES6", "ES7", "DOM"],
    "sourceMap": true,
    "allowJs": true,
    "jsx": "preserve",
    "moduleResolution": "node",
    "forceConsistentCasingInFileNames": true,
    "noImplicitReturns": true,
    "strict": true,
    "strictFunctionTypes": true,
    "suppressImplicitAnyIndexErrors": true,
    "noUnusedLocals": true,
    "pretty": true,
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true,
    "downlevelIteration": true,
    "resolveJsonModule": true,
    "skipLibCheck": true,
    "plugins": [
      {
        "name": "typescript-plugin-css-modules",
        "options": {
          "namedExports": false,
          "classnameTransform": "camelCaseOnly"
        }
      }
    ]
  },
  "include": ["src/**/*", "**/**.test.ts", "**/**.test.tsx", "src/custom.d.ts"],
  "exclude": ["node_modules"]
}